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Finding the Fourth Proportional to 717.76, 988.92 and 599.32

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Solution

The fourth proportional to 717.76, 988.92 and 599.32 is: 825.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    717.76 : 988.92 = 599.32 : x
  2. Step 2: Convert to fraction form
    717.76/988.92 = 599.32/x
  3. Step 3: Cross multiply
    717.76x = 988.92 × 599.32
  4. Step 4: Simplify right side
    717.76x = 592,679.53
  5. Step 5: Solve for x
    x = 592,679.53/717.76
  6. Step 6: Final answer
    x = 825.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.